Obi Wan uses it in Episode I and III, Anakin in II, Luke in IV, Han in IV and VII, Leia in V, and C-3PO in VI. Additionally, Harrison Ford says the phrase in Indiana Jones and the Kingdom of the Crystal Skull.

Jidaigeki is a genre of Japanese media that takes place mostly in the Edo period of Japanese history. Lucas was a huge fan of Japanese samurai films, and used them as inspiration while making Star Wars.

Although Mark Hamill and Carrie Fisher had a contract for a third film, Ford was not sure he would return for the third. The writers and Lucas decided to freeze Han, in case Ford decided (or failed) to return.

18.Star Wars isn't the first mention of Endor. It's also in the Bible and in The Lord of the Rings .

During filming only Lucas, director Irvin Kershner, writer Lawrence Kasdan, Mark Hamill, and James Earl Jones knew the secret. To prevent the rest of the crew from discovering the secret, during the shoot Darth Vader said: "You don't know the truth: Obi-Wan killed your father!" Later, it was edited with Earl Jones' voice to the now iconic line.